CONCENTRATION OF POPs IN SWISS COW MILK VARY WITH SUMMER GRAZING ALTITUDE
Introduction Mountain cold trapping refers to the preferential accumulation of selected persistent organic pollutants (POPs) in high altitude regions caused by precipitation that becomes more intense and colder, and thus more efficient in depositing contaminants, with increasing elevation. Experimental evidence is based on concentration gradients of POPs in soils, foliage, and fish that increase with altitude. Despite its obvious importance for human exposure to POPs, so far no studies have looked at the potential impact of such cold trapping on contaminant levels in the milk of cows grazing at high altitude. This study seeks to examine the differences in levels of POPs in milk from cows that grazed at three different altitudes in the Swiss Alps.
Shunthirasingham C Pacepavicius G Wania F MacLeod M Scheringer M Wegmann F Hungerbühler K Ivemeyer S Heil F Klocke P
Department of Physical & Environmental Sciences,University of Toronto at Scarborough,1265 Military T Environment Canada,Burlington,Ontario,Canada Institute for Chemical and Bioengineering,ETH Zürich,CH-8093,Zürich,Switzerland FiBL - Research Institute of Organic Agriculture, CH-5070 Frick, Switzerland
国际会议
北京
英文
1-5
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）